install turtle时，错误如：
C:\Users\Administrator>pip install turtle
Collecting turtle
Using cached turtle-0.0.2.tar.gz (11 kB)
ERROR: Command errored out with exit status 1:
command: 'E:\Eprogramfiles\Anaconda3\envs\myenvpy38\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Administrator\\AppData\\Local\\Temp\\pip-install-y2np_brd\\turtle_6b8abc77d665409ab5074ad3ac742b4b\\setup.py'"'"'; __file__='"'"'C:\\Users\\Administrator\\AppData\\Local\\Temp\\pip-install-y2np_brd\\turtle_6b8abc77d665409ab5074ad3ac742b4b\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\Administrator\AppData\Local\Temp\pip-pip-egg-info-8zvy_c3q'
cwd: C:\Users\Administrator\AppData\Local\Temp\pip-install-y2np_brd\turtle_6b8abc77d665409ab5074ad3ac742b4b\
Complete output (6 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Users\Administrator\AppData\Local\Temp\pip-install-y2np_brd\turtle_6b8abc77d665409ab5074ad3ac742b4b\setup.py", line 40
except ValueError, ve:
^
SyntaxError: invalid syntax
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
发现在setup.py包的第40行 except ValueError, ve处有错，Python2中是可以这样写的，但在Python3中多个异常需要放在小括号中。
解决方法
根据错误信息中的给定的地址，下载pip turtle-0.0.2
-e参数后面是刚修改的turtle-0.0.2所在的目录，使用修改后的安装
